Cos(-п/4) sin(-п/2) sin(-п/6)

Question

Cos(-п/4)
sin(-п/2)
sin(-п/6)

Answer 1

Cos(-п/4)=√2/2
sin(-п/2)=-1
sin(-п/6)=-1/2

Comments

На первом не будет минуса

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Уже заметил.